1. Removed invalid ".Ebs." from the "NoDevice" parameter.
2. If "NoDevice" is needed, will no longer list any "Ebs" type parameters as they were causing AWS to launch instances with no root device at all (even if a 3nd block device was defined).
3. Removed  "true" value from ".NoDevice" parameter.
[refs boto/boto#1302] - adds a return value to set_contents_from_filename
Merge branch 'develop' of git://github.com/ericsmalling/boto into ericsmalling-develop
Add unittest for  #1339
Merge branch 'ohe-develop' into develop

* ohe-develop:
  Add unittest for  #1339
  [refs boto/boto#1302] - adds a return value to set_contents_from_filename